What's actually in the bottle, and what it costs per ounce.
Eight shampoos people reach for when their hair starts thinning, compared on the ingredients that matter, whether they use sulfates, bottle size and real price per ounce. No star ratings we made up.
Disclosure. This guide is published by Web Ventures Group, whose founder also founded Regenepure, one of the products listed. We may earn a commission from some links. Every product is shown with the same fields, and you can sort the table by price to see where each one lands.
Compare the formulas
Filter by the ingredient you care about, then sort by price per ounce. A filled dot means the brand lists that ingredient.
| Shampoo | Ketoconazole | Saw palmetto | Caffeine | Biotin | Niacin / B3 | Sulfates | Size | Typical price | Per oz |
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No shampoo in this list matches that filter.
Prices are typical US retail seen at major retailers in November 2026 and move often. Ingredient marks follow each brand's published ingredient list; formulas change, so check the label on the bottle you buy.
Each shampoo, briefly
The ingredients worth reading for
Labels on this shelf are crowded. These are the names that come up most in hair-loss conversations, with plain notes on what each one is.
Ketoconazole
An antifungal sold over the counter at 1% in Nizoral A-D, where it is the declared active ingredient for dandruff. It shows up in many dermatologists' hair-loss routines as a supporting shampoo. Some cosmetic shampoos include it at low levels without declaring it as an active.
Saw palmetto
A palm-berry extract often discussed for its link to DHT, the hormone tied to pattern hair loss. In a rinse-off shampoo, contact time is short, so treat it as a supporting ingredient.
Caffeine
Popularized by Alpecin. Brands that use it usually ask you to leave the lather on for one to two minutes before rinsing.
Biotin
Vitamin B7. Common in thickening formulas for how hair looks and feels after washing. A deficiency is rare, and a shampoo is a topical product, not a supplement.
A shampoo is one part of a hair-loss plan. Treatments with FDA approval for pattern hair loss, such as minoxidil, are a separate category. If you are shedding more than usual, a dermatologist can tell you what is driving it.
Common questions
Can a shampoo regrow hair?
None of the cosmetic shampoos here are approved to regrow hair. People use them to keep the scalp clean and to support a routine that may include a treatment from a doctor.
Why does "no sulfates" matter?
Sulfates are strong detergents. Some people with a dry or sensitive scalp, or with color-treated hair, prefer gentler cleansers. Others do fine with them. It is a preference more than a rule.
Is price per ounce the right way to compare?
It is the fairest quick check, since bottles range from 6.4 to 16 oz. How much you use per wash and how often you wash matter too: some of these are meant for every other day.
How did you pick these eight?
They are the shampoos that come up most often in hair-loss forums, dermatology offices and retailer best-seller lists. We will add more as readers suggest them.